KYB SA1022 Suspension Shock Absorber - Rear

KYB Gas-a-just Rear Shock for Mazda 3

The KYB Gas-a-just SA1022 is an OE-style monotube shock absorber for the rear of select 2010-2013 Mazda 3 models. It restores original damping response with a hydraulic working chamber for control and a separate high-pressure nitrogen chamber for added performance when road conditions demand it.

Key Features

• Monotube suspension shock absorber for rear applications
• Air-free hydraulic piston and valve area for responsive damping
• High-pressure nitrogen gas chamber with floating piston for consistent ride control
• Compressed length: 18.89 in.
• Extended length: 28.34 in.
• Stroke length: 9.45 in.
• Lower mount type: E2 (12x36)
• Upper mount type: S1 (8MM)
• Boot included
• Shock mount included

Detailed Description

Built for rear suspension service on the Mazda 3, KYB Gas-a-just SA1022 uses a monotube design to separate the hydraulic and gas chambers for more consistent damping behavior. That layout supports normal driving comfort while providing quicker response when the suspension is working harder. For shoppers searching for a rear shock absorber for 2010-2013 Mazda 3, this part number offers a direct OE-style replacement path.

The Gas-a-just line is KYB’s monotube shock family for drivers who want original-equipment-style fit and controlled suspension action. This SA1022 application is listed for the rear of the Mazda 3 and includes the shock and mount assembly notes shown in the fitment data. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

What It Helps Address

• Excessive rear-end bounce after bumps
• Reduced damping control over rough pavement
• Uneven ride feel from worn rear shocks
• Delayed suspension response during braking or cornering
• Noisy or unstable rear suspension behavior from a worn shock assembly

Installation Notes and Tips

Fits 2010-2013 Mazda 3, rear. Verify mount style and dimensions before installation: lower mount E2 (12x36), upper mount S1 (8MM), compressed length 18.89 in., extended length 28.34 in., and stroke length 9.45 in. Confirm the rear shock assembly matches the vehicle’s original configuration before removal. Part number SA1022 should be matched to the listed Mazda 3 rear application only.

Quality Assurance

KYB is known for OE-focused suspension engineering, and the Gas-a-just line is built as a monotube replacement for restoring factory-style control and response. Part number SA1022 is specified for the rear suspension of select Mazda 3 models from 2010 through 2013.